Color- Colorless through various colors to black has many colors Crystal sysetem- trapezohedral class cleavage- Indistinct fracture- Conchoidal Hardness 7 lower impure luster Vitreous – waxy to dull when massive
Streak white it is made of Silica, belongs to the hexagonal system it is formed by silicon-oxygen tertahedra with each oxygen being shared between two tetrahedral the density of this is 2.65 - 2.66 g/cm3
it is found in europ and such as newgrange or carrowmore in Ireland uses for it are Quartz is important in the production of soaps and ceramics many electronic uses
Color- Colorless through various colors to black has many colors
Crystal sysetem- trapezohedral class cleavage- Indistinct fracture- Conchoidal
Hardness 7 lower impure luster Vitreous – waxy to dull when massive
Streak white
it is made of Silica, belongs to the hexagonal system
it is formed by silicon-oxygen tertahedra
with each oxygen being shared between two tetrahedral
the density of this is 2.65 - 2.66 g/cm3
it is found in europ and such as newgrange or carrowmore in Ireland
uses for it are Quartz is important in the production of soaps and ceramics
many electronic uses
quartz has many names like and
http://www.minerals.net/mineral/silicate/tecto/quartz/quartz.htm